Home / 14,691.84-20,274.48-8,403.36

Finding the Fourth Proportional to 14,691.84, 20,274.48 and 8,403.36

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Solution

The fourth proportional to 14,691.84, 20,274.48 and 8,403.36 is: 11,596.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,691.84 : 20,274.48 = 8,403.36 : x
  2. Step 2: Convert to fraction form
    14,691.84/20,274.48 = 8,403.36/x
  3. Step 3: Cross multiply
    14,691.84x = 20,274.48 × 8,403.36
  4. Step 4: Simplify right side
    14,691.84x = 170,373,754.25
  5. Step 5: Solve for x
    x = 170,373,754.25/14,691.84
  6. Step 6: Final answer
    x = 11,596.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.